Mimic TCP monitor request from CLI

I have a TCP monitor based on the configuration mentioned here for our RDP servers. Prior to this weekend, when we did the windows updates, the monitor was working fine. However, now the monitor is failing, and I think it may have to do with some of the updates.

What I'd like to do is mimic the TCP request sent to the server and see what it's actually getting back, so I can debug what may have changed in the response. Is there a way to do that?